org.bson.codecs.EnumCodec Maven / Gradle / Ivy
/*
* Copyright 2008-present MongoDB, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.bson.codecs;
import org.bson.BsonReader;
import org.bson.BsonWriter;
/**
* A codec for classes that extends {@link Enum}
*
* @param The enum type
* @since 4.5
*/
public final class EnumCodec> implements Codec {
private final Class clazz;
/**
* Construct an instance for teh given enum class.
*
* @param clazz the enum class
*/
public EnumCodec(final Class clazz) {
this.clazz = clazz;
}
@Override
public T decode(final BsonReader reader, final DecoderContext decoderContext) {
return Enum.valueOf(clazz, reader.readString());
}
@Override
public void encode(final BsonWriter writer, final T value, final EncoderContext encoderContext) {
writer.writeString(value.name());
}
@Override
public Class getEncoderClass() {
return clazz;
}
}